Re: Filtering duplicated data problem

Thanks a lot Geert Josten. I have spent a lot time on
this problem, but couldn't get it works, the match
expression never close to what you have. Thank you
very much for letting me to learn from your solution.

I'm not quite understand the match expression of
"item[@title !=
''][following-sibling::item[itemmetadata/qtimetadata/qtimetadatafield[fieldlabel
 =  'item_type_code'][fieldentry ='OE']]]"

I thought it will only return two item that is OE
item?? but it works. Would you please explain it more
for me?

Thanks again and you have a great day!
Fanyin



--- Geert Josten <Geert.Josten@xxxxxxxxxxx> wrote:

> Hi Fanyin Wang,
> 
> I'm not sure it is really a grouping problem, though
> it is related. But I can tell you where your 
> script fails. I suspect you use the following line
> to determine the distinctness of some item/@id, 
> but it obviously fails:
>         <xsl:if
> test="not(preceding-sibling::item/@id = $pass_id)">
> 
> At least one problem is that the preceding-sibling
> does not go up the section element an down a 
> preceding section. Use the preceding axis for this.
> But I tried and this also doesn't seem to work 
> and I haven't figured out why exactly.
> 
> But I did come up with a solution (see below) that
> builds an index on what you are searching and 
> uses that index to determine whether an item with a
> specific @id value is the first in document 
> order or not. The xsl:key defines the index, which
> contains a rather complex match expression, but 
> this expression merely combines your own if and
> foreach in the item template. The tricky part comes 
> in passage2 template, where I use generate-id to
> determine whether the first of all OE-items with 
> the same id is actually the current item. Only the
> first in document order is printed.
> 
> Grtz,
> Geert
> 
> <?xml version="1.0" encoding="UTF-8"?>
> <xsl:stylesheet version="1.0"
>    xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
>    xml:space="default">
> 
>   <xsl:key name="OE-related-items-by-id"
> match="item[@title != 
>
''][following-sibling::item[itemmetadata/qtimetadata/qtimetadatafield[fieldlabel
> = 
> 'item_type_code'][fieldentry ='OE']]]" use="@id" />
> 
>   <!--xsl:template match="/">
>     <xsl:apply-templates select="//item"
> mode="passage"/>
>   </xsl:template-->
> 
>   <xsl:template match="/">
>     <xsl:apply-templates select="//item"
> mode="passage2"/>
>   </xsl:template>
> 
>   <xsl:template match="item" mode="passage">
>     <xsl:if 
>
test="descendant::qtimetadatafield/fieldentry[preceding-sibling::node()[text()='item_type_code']]/text()='OE'">
>       <xsl:for-each
> select="preceding-sibling::item[@title !='']">
>         <xsl:variable name="pass_id" select="@id"/>
>         <xsl:if
> test="not(preceding-sibling::item/@id = $pass_id)">
>           pa_id= <xsl:value-of
> select="@id"/><br></br>
>         </xsl:if>
>       </xsl:for-each>
>     </xsl:if>
>   </xsl:template>
> 
>   <xsl:template match="item" mode="passage2">
>     <xsl:if test="generate-id(.) =
> generate-id(key('OE-related-items-by-id', @id)[1])">
>       pa_id= <xsl:value-of select="@id"/><br></br>
>    </xsl:if>
> </xsl:template>
> 
> </xsl:stylesheet>
> 
> 



		
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